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KAIST Develops Fiber-Like Light-Emitting Diodes for Wearable Displays
Professor Kyung-Cheol Choi and his research team from the School of Electrical Engineering at KAIST have developed fiber-like light-emitting diodes (LEDs), which can be applied in wearable displays. The research findings were published online in the July 14th issue of Advanced Electronic Materials.
Traditional wearable displays were manufactured on a hard substrate, which was later attached to the surface of clothes. This technique had limited applications for wearable displays because they were inflexible and ignored the characteristics of fabric.
To solve this problem, the research team discarded the notion of creating light-emitting diode displays on a plane. Instead, they focused on fibers, a component of fabrics, and developed a fiber-like LED that shared the characteristics of both fabrics and displays.
The essence of this technology, the dip-coating process, is to immerse and extract a three dimensional (3-D) rod (a polyethylene terephthalate fiber) from a solution, which functions like thread. Then, the regular levels of organic materials are formed as layers on the thread.
The dip-coating process allows the layers of organic materials to be easily created on the fibers with a 3-D cylindrical structure, which had been difficult in existing processes such as heat-coating process. By controlling of the withdrawal rate of the fiber, the coating's thickness can also be adjusted to the hundreds of thousandths of a nanometer.
The researchers said that this technology would accelerate the commercialization of fiber-based wearable displays because it offers low-cost mass production using roll-to-roll processing, a technology applied to create electronic devices on a roll of flexible plastics or metal foils.
Professor Choi said, “Our research will become a core technology in developing light emitting diodes on fibers, which are fundamental elements of fabrics. We hope we can lower the barrier of wearable displays entering the market.”
The lead author of the published paper, Seon-Il Kwon, added, “This technology will eventually allow the production of wearable displays to be as easy as making clothes.”
Picture 1: The Next Generation Wearable Display Using Fiber-Based Light-Emitting Diodes
Picture 2: Dip-Coating Process to Create Fiber-Based Light-Emitting Diodes
Picture 3: Fiber-Based Light-Emitting Diodes
2015.08.11 View 13459 -
President Steve Kang of KAIST Receives the Outstanding Contribution Award from the Korean-American Scientists and Engineers Association
The Korean-American Scientists and Engineers Association (KSEA), a non-profit Korean professional organization based in the United States with over 6,000 registered members, bestowed upon President Steve Kang of KAIST the 2015 Outstanding Contribution Award.
The award is presented to a person who has made significant contributions to the development of KSEA.
The award ceremony took place during the 2015 US-Korea Conference on Science, Technology, and Entrepreneurship (UKC), which was held on July 30, 2015, at the Hyatt Regency Hotel in Atlanta, Georgia.
The UKC is the flagship conference of KSEA, which takes place every year, and covers science, engineering, technology, industry, entrepreneurship, and leadership. It attracts more than 1,200 participants from the US and Korea. The UKC 2015 was held on July 29-August 1, 2015.
President Kang has participated in UKC conferences over the past few years as a plenary speaker, addressing major issues in science and technology for both nations, and provided generous support for the activities of UKC and KSEA. He also promoted discussions and exchanges of professional knowledge in his field, microelectronics, by organizing fora and symposia.
He addressed the UKC 2015 as a plenary speaker with a speech entitled “Pursuing Excellence with a Servant’s Heart.” President Kang said that good leadership should bring out synergistic contributions from all constituents and achieve excellence under all circumstances. He mentioned one example of good leadership, known as humble leadership, and explained how such leadership played an important role in the development of scientific breakthroughs, such as the world’s premier high-end microprocessor chip sets first produced by his team under extremely high pressure.
2015.08.05 View 7982 -
Dr. Se-Jung Kim Receives the Grand Prize at the International Photo and Image Contest on Light
Dr. Se-Jung Kim of the Physics Department at KAIST received the Grand Prize at the 2015 Photo and Image Contest of the International Year of Light and Light-based Technologies.
The United Nations has designated the year 2015 as the International Year of Light and Light-based Technologies.
The Optical Society of Korea celebrated the UN’s designation by hosting an international photo and image contest on the theme of light and optics related technology.
Dr. Kim presented a photo of images taken from a liquid crystal, which was entitled “A Micro Pinwheel.” She took pictures of liquid crystal images with a polarizing microscope and then colored the pictures. The liquid crystal has self-assembled circle domain structures, and each domain can form vortex optics. Her adviser for the project is Professor Yong-Hoon Cho of the Physics Department.
Her work was exhibited during the annual conference of the Optical Society of Korea, which was held on July 13-15, 2015 at Gyeong-Ju Hwabaek International Convention Center. It will also be exhibited at the National Science Museum in Gwacheon and the Kim Dae-Jung Convention Center in Gwangju.
Picture: A Micro Pinwheel
2015.07.31 View 10688 -
A Technology Holding Company Establishes Two Companies Based on Technologies Developed at KAIST
Mirae Holdings is a technology holding company created by four science and technology universities, KAIST, DIGIST (Daegu Gyeongbuk Institute of Science and Technology), GIST (Gwangju Institute of Science and Technology), and UNIST (Ulsan National Institute of Science and Technology) in 2014 to commercialize the universities’ research achievements. The company identifies promising technologies for commercialization, makes business plans, establishes venture capitals, and invests in startup companies.
Over the past year, Mirae Holdings has established two venture companies based on the technologies developed at KAIST. In September 2014, it founded Cresem Inc., a company used the anisotropic conductive film (ACF) bonding technology, which was developed by Professor Kyung-Wook Paik of the Material Science and Engineering Department at KAIST. Cresem provides a technology to bond electronic parts ultrasonically. The company is expected to have 860,000 USD worth of sales within the first year of its launching.
Last June, Mirae Holdings created another company, Doctor Kitchen, with the technology developed by Professor Gwan-Su Yi of the Bio and Brain Engineering Department at KAIST. Doctor Kitchen supplies precooked food, which helps diabetic patients regulate their diet. The company offers a personalized diet plan to customers so that they can effectively manage their disease and monitor their blood sugar level efficiently.
The Chief Executive Officer of Mirae Holdings, Young-Ho Kim, said, “We can assist KAIST researchers who aspire to create a company based on their research outcomes through various stages of startup services such as making business plans, securing venture capitals, and networking with existing businesses.”
Young-Ho Kim (left in the picture), the Chief Executive Officer of Mirae Holdings, holds a certificate of company registration with Sang-Min Oh (right in the picture), the Chief Executive Officer of Cresem.
Young-Ho Kim (left in the picture), the Chief Executive Officer of Mirae Holdings, holds a certificate of company registration with Jae-Yeun Park (right in the picture), the Chief Executive Officer of Dr. Kitchen.
2015.07.29 View 13286 -
Professor Suk-Joong Kang Receives the Richard Brook and Helmholtz Awards
Professor Suk-Joong Kang of KAIST’s Department of Materials Sciences and Engineering received the Richard Brook Award from the European Ceramic Society at its 14th conference held on June 21, 2015, in Toledo, Spain. The award is presented to the most distinguished academic or engineer in ceramics from a non-European country. Professor Kang gave the commemorative lecture after the award ceremony.
Professor Kang is an expert in the field of sintering and microstructural evolution in ceramics and metals. He suggested a new model for grain growth and identified the principles of microstructural evolution.
He also received the 2015 Helmholtz Fellow Award in June. The Helmholtz Association, the largest scientific organization in Germany, confers the award on outstanding senior scientists based outside Germany who have made great academic and research achievements in their fields.
Professor Kang said of the Brook Award, “It is such an honor to receive an award from an eminent global institution. I take this opportunity to thank my students and colleagues for their support, and I will work harder for my research.”
2015.07.20 View 6879 -
Dong-Young Lee, a Doctoral Candidate, Receives the Best Paper Award
Dong-Young Lee, a Ph.D. candidate in the Mechanical Engineering Department, KAIST, received the Best Paper Award at the 18th International Conference on Composite Structures (ICCS). The event was held in Lisbon, Portugal, on June 15-18, 2015. Mr. Lee’s adviser is Professor Dai-Gil Lee of the same department.
The ICCS is held every other year, and is one of the largest and long-established conferences on composite materials and structures in the world. At this year’s conference, a total of 680 papers were presented, among which, two papers were chosen for the Best Paper Award, including Mr. Lee’s.
The paper, entitled “Gasket-integrated Carbon and Silicon Elastomer Composite Bipolar Plate for High-temperature PEMFC,” will be published in the September issue of Composite Structures which is one of the top journals in mechanical engineering as judged by the Google Scholar Metrics rankings.
Mr. Lee dropped the conventional method of PEMFC (Proton Exchange Membrane Fuel Cells) assembly and instead developed a gasket-integrated carbon and silicone elastomer composite bipolar plate. This technology significantly increased the energy efficiency of fuel cells and their productivity.
Mr. Lee said, “I would like to thank the many people who supported me, especially my Ph.D. adviser, Professor Dai-Gil Lee. Without their encouragement, I would have not won this award. I hope my research will contribute to solving energy problems in the future.”
In addition, Professor Joon-Woo Im from Chonbuk National University, Senior Researcher Il-Bum Choi from the Agency for Defense Development, and a fellow doctoral candidate Soo-Hyun Nam from KAIST participated in this research project.
2015.07.09 View 10166 -
Professor Naehyuck Jang was Appointed Technical Program Chair of the Design Automation Conference
Professor Naehyuck Jang of the Electrical Engineering Department at KAIST was appointed as the technical program chair of the Design Automation Conference (DAC). He is the first Asian to serve the conference as the chair. At next year’s conference, he will select 150 program committee members and supervise the selection process of 1,000 papers.
Founded in 1964, DAC encompasses research related to automation of semiconductor processes, which usually involve billions of transistors. More than seven thousand people and 150 companies from all around the world participate, of which only the top 20% of the submitted papers are selected. It is the most prestigious conference in the field of semiconductor automation.
The Design Automation Conference also introduces optimization and automation of design processes of systems, hardware security, automobiles, and the Internet of things. Professor Jang specializes in low power system designs. As an ACM Distinguished Scientist, Professor Jang was elected as the chairman after contributing to this year’s program committee by reforming the process of selection of papers.
Professor Jang said, “This year’s conference represents a departure, where we move from the field of traditional semiconductors to the optimization of embedded system, the Internet of things, and security. He added that “we want to create a paper selection process that can propose the future of design automation.”
The 53rd annual DAC will take place at the Austin Convention Center in Texas in June 2016.
2015.07.02 View 7318 -
Professor Kyoungsik Yu Receives the Young IT Engineer Award from IEEE and IEIE of Korea
Professor Kyoungsik Yu of KAIST’s Department of Electrical Engineering is the recipient of this year’s Young IT (Information Technology) Engineer Award that was co-hosted by the Institute of Electrical and Electronics Engineers (IEEE), the Institute of Electronics Engineers of Korea (IEIE), and Haedong Science Culture Foundation in Korea. The award was presented on June 22, 2015 at The Ramada Plaza Jeju Hotel on Jeju Island, Korea.
The Young IT Engineer Award is given to emerging scientists who have made significant contributions to the advancement of technology, society, environment, and creative education.
Professor Yu's main research interests are IT, energy, and imaging through miniaturization and integration of optoelectronic devices. His contribution to academic and technological development is reflected in his publication of more than 100 papers in international journals and conferences, which were cited over 2,200 times.
Professor Yu said, “I’m honored to receive this award and am encouraged by it. I also find the award meaningful because the United Nations has designated this year as the “International Year of Light and Light-based Technologies,” the field I have been involved in as a researcher.”
In addition to Korea, the IEEE has jointly hosted and presented this award to researchers in countries such as Chile, Ecuador, Peru, Singapore, and Italy.
2015.06.22 View 12517 -
KAIST to support the Genetic Donguibogam Research Project for global market entry of a new natural drug produced by Green Cross Corporation HS
In the wake of the spread of the Middle East Respiratory Syndrome (MERS), sales of immune-enhancing products in Korea such as red and white ginseng have risen dramatically. Ginseng is one of Korea’s major health supplement it exports, but due to the lack of precise scientific knowledge of its mechanism, sales of ginseng account for less than 2% of the global market share.
The Genetic Donguibogam Research Project represents a group of research initiatives to study genes and environmental factors that contribute to diseases and to discover alternative treatments through Eastern medicine. The project is being led by KAIST’s Department of Bio & Brain Engineering Professor Do-Heon Lee.
Professor Lee and Chief Executive Officer Young-Hyo Yoo of Green Cross Corporation HS, a Korean pharmaceutical company, signed a memorandum of understanding (MOU), as well as a non-disclosure agreement (NDA) to develop a naturally derived drug with an enhanced ginsenoside, pharmacological compounds of ginseng, for the global market entry of BST204 on June 10, 2015.
Donguibogam is the traditional Korean source for the principles and practice of Eastern medicine, which was compiled by the royal physician Heo Jun and first published in 1613 during the Joseon Dynasty of Korea.
Cooperating with Green Cross Co., HS, KAIST researchers will use a multi-component, multi-target (MCMT)-based development platform to produce the new natural drug, BST204. This cooperation is expected to assist the entry of the drug into the European market.
Green Cross Co., HS has applied a bio-conversion technique to ginseng to develop BST204, which is a drug with enhanced active constituent of aginsenosides. The drug is the first produced by any Korean pharmaceutical company to complete the first phase of clinical trials in Germany and is about to start the second phase of trials.
Professor Do-Heon Lee, the Director of the project said, “Genetic Donguibogam Research Project seeks to create new innovative healthcare material for the future using integrated fundamental technologies such as virtual human body computer modelling and multi-omics to explain the mechanism in which natural ingredients affect the human body.” He continued, “Especially, by employing the virtual human body computer modelling, we can develop an innovative new technology that will greatly assist Korean pharmaceutical industry and make it the platform technology in entering global markets.”
Young-Hyo Yoo, the CEO of Green Cross Co., HS, said, “For a new naturally derived drug to be acknowledged in the global market, such as Europe and the US, its mechanism, as well as its effectiveness and safety, should be proven. However, it is difficult and costly to explain the mechanism in which the complex composition of a natural substance influences the body. Innovative technology is needed to solve this problem.”
Professor Do-Heon Lee (left in the picture), the Director of Genetic Donguibogam Research Project, stands abreast Young-Hyo Yoo (right in the picture), the CEO of Green Cross Co., HS.
2015.06.10 View 9409 -
KAIST's DRC-HUBO Wins the DARPA Robotics Challenge 2015
DRC-HUBO finished all eight assignments in less than 45 minutes, taking first place among 24 international teams and claiming the USD 2 million prize offered by a US defense research agency.
The Robotics Challenge Finals 2015 hosted by the US Defense Advanced Research Projects Agency (DARPA) took place on June 5-6, 2015 at the Fairplex in Pomona, California.
Team KAIST of the Republic of Korea led by Professor Jun-Ho Oh of the Mechanical Engineering Department at the Korea Advanced Institute of Science and Technology (KAIST), Professor In-So Kweon of the Electrical Engineering Department, and researchers from Rainbow Co., the university’s spin-off company that builds the robots, won the DARPA Finals. The team received USD 2 million as a prize.
The DARPA’s Robotics Challenge (DRC) promotes a competition of robot systems and software teams which seek to develop robots capable of assisting humans in responding to natural and man-made disasters such as the Fukushima Daiichi nuclear incident in 2011. The DRC consists of three competitions: a software-based Virtual Robotics Challenge which took place in June 2013; the Robotics Challenge Trials in Homestead, Florida, in December 2013; and the Finals in June 2015.
A total of 24 teams from universities and private and public research institutes from Korea, the US, Hong Kong, Germany, Japan, and Italy participated in the Finals. The participating teams had to finish eight assignments in 60 minutes, during which their robots were untethered and operated wirelessly without communication from their engineers.
Each team was assigned a series of tasks: they included driving a vehicle, getting out of a vehicle, opening a door, turning a valve, drilling a hole in a wall, a surprise task such as pushing a button or turning on a switch, walking over rubble or debris, and climbing stairs. Robots scored a point each time they completed their missions. To win, a team had to complete all the tasks successfully in the shortest amount of time possible.
Team KAIST completed the entire course in 44 minutes and 28 seconds, followed by the Institute of Human and Machine Cognition (IHMC) Robotics in Pensacola, Florida in 50:26, and Team TARTAN Rescue of the National Robotics Engineering Center at Carnegie Mellon University in 55:15.
For details, see an article below from the New York Times:
New York Times, June 6, 2015
“Korean Robot Makers Walk Off With $2 Million Prize”
http://www.nytimes.com/2015/06/07/science/korean-robot-makers-walk-off-with-2-million-prize.html?_r=1
DRC-HUBO sticks a plug into an outlet for the surprise task at the 2015 DARPA Robotics Challenge on June 5-6, 2015, in Pomona, California.
DRC-HUBO turns a valve in a clockwise direction.
DRC-HUBO drills to cut a circle into the wall.
Members of Team KAIST pose together after the award ceremony on June 6, 2015.
2015.06.07 View 24551 -
KAIST to Kick-Start the Exchange of Young Researchers with Northern European Universities
KAIST promotes research exchange and cooperation with three universities in Northern Europe.
KAIST has signed a letter of intent (LOI) for the mutual exchange of young researchers and cooperation to collaborate with KTH Royal Institute of Technology and Lund University, both based in Sweden on June 2, 2015, and with Aalto University in Finland on June 4, 2015.
This LOI was the result of the cooperative projects of Korea-Sweden and Korea-Finland Joint Committees on Science and Technology supervised by the Ministry of Science, ICT and Future Planning of Korea.
As agreed in the LOI, KAIST will conduct joint research projects with the three universities by providing students and researchers with opportunities to visit each other through internship programs and workshops and by sharing information on education and research.
Sung-Hyon Mayeng, the Associate Vice President of the International Relations Office at KAIST, said, “It’s an encouraging sign that universities and governments recognize the importance of increasing exchanges among academic and research communities. Expecting more vibrant relationships to be formed between KAIST and the three northern European universities in coming years, I hope that today’s agreement becomes a good basis to spur technological innovations that will not only benefit the regions but also the world.”
Established in 1827, the KTH Royal Institute of Technology is the largest and oldest technical university in Sweden, accounting for one-third of the nation’s technical research and engineering education capacity at university level. The university offers education and research programs from natural sciences to all branches of engineering including architecture, industrial management, and urban planning. According to the QS World University Rankings in 2014, KTH Royal Institute of Technology ranked 27th in engineering and 1st in Northern Europe.
Lund University, Sweden, is one of the oldest and most prestigious universities in northern Europe, consistently ranking among the world’s top 100 universities. In particular, its biological sciences and engineering have shown great strength, placing within the top 60 universities by the Times Higher Education (THE) World University Rankings. The university also receives the largest amount of research funding from the Swedish government.
Aalto University in Finland was created as a merger of three leading Finnish universities: the Helsinki University of Technology (established 1849), the Helsinki School of Economics (established 1904), and the University of Art and Design Helsinki (established 1871). The university nurtures the close collaborations across science, business, and arts to foster multi-disciplinary education and research.
2015.06.04 View 8996 -
World Renowned Wireless Technology Experts Gathered in KAIST
KAIST hosted the 2015 IEEE WoW from June 5 to 6, 2015
Wireless power transfer technologies, such as wireless electric vehicles, trains and batteries, are increasingly in use. A conference, The 2015 IEEE WoW (Workshop on Wireless Power), was held in KI Building for two days starting June 5, 2015 to exchange ideas on the new trends and issues of the world wireless power technology.
The wireless power conference hosted by Institute of Electrical and Electronics Engineers (IEEE), IEEE WoW, was sponsored by its societies, PELS, IAS, IES, VTS, MAG, and PES.
This year’s conference took place in Korea for the first time and was titled “IEEE PELS Workshop on Emerging Technologies: Wireless Power.” The event was attended by around 200 experts in wireless power from 15 countries to discuss the international standards and current trends.
Keynote speakers were President Don Tan of IEEE; Professor Grant Covic of the University of Auckland; Andrew Daga, the CEO at Momentum Dynamics Corporation; Professor Ron Hui of the City University of Hong Kong; and Jung Goo Cho, the CEO of Green Power Technologies.
The forum included plenary speaking sessions on “The Futures of EV and Power Electronics,” “Development of IPT at the University of Auckland,” “Interoperable Solution for Wireless EV Charging,” “Development of IPT for Factory Automation,” “Commercialization of High Power WPT,” and “WPT: From Directional Power to Omni-directional Power.”
Notably, KAIST Professor Dong-Ho Cho, responsible for KAIST’s On-Line Electric Vehicle (OLEV) development, spoke on “The Development of Shaped Magnetic Field Systems for EVs and Trains” to introduce the KAIST OLEV bus and OLEV trains developed in cooperation with Korea Railroad Research Institute.
The Dialog Sessions on “The Futures of Wireless Electric Vehicles” were led by John M. Miller of JNJ Miller and “Road Charged EV and WPT Regulation and Standard for EV in Japan” by Yoichi Hori of University of Tokyo.
The General Chair of this year’s IEEE WoW, KAIST Professor Chun T. Rim said, “This forum serves a great assistance to the industry using wireless power technology in areas such as smartphones, home appliances, Internet of Things, and wearable devices.”
2015.05.29 View 9913